Polygon models holes filling for preserving sharp features
HE Chaoming · Manufacturing Technology & Machine Tool · 2011
Due to existing holes in polygon models which is reconstructed from the digitized points,a sharpness dependent hole filling approach of polygon models is proposed in this paper.First,interpolation based on radial basis function is applied to create a smooth implicit surface and this surface can approximate the shape of the missed data.Then,a regularized marching tetrahedral algorithm is adopted to triangulate the above implicit surface.A repaired mesh model is obtained by stitching the hole patch and the hole boundary of the original model.Finally,a feature enhancement process is applied if there exists a sharp feature on the hole boundary of the original model.Experiment results show that our approach can produce excellent reparation results especially for recovering sharp feature.